Clean up

app/src/main/java/com/nextcloud/talk/controllers/CallController.java

@@ -1403,7 +1403,7 @@ public class CallController extends BaseController {
                     @Override
                     public void onNext(GenericOverall genericOverall) {
                         if (hasExternalSignalingServer) {
-                            webSocketClient.joinRoomWithRoomTokenAndSession("", "");
+                            webSocketClient.joinRoomWithRoomTokenAndSession("", callSession);
                         }
 
                         if (isMultiSession) {

app/src/main/java/com/nextcloud/talk/webrtc/MagicPeerConnectionWrapper.java

@@ -91,7 +91,7 @@ public class MagicPeerConnectionWrapper {
                 new MagicPeerConnectionObserver());
 
         if (peerConnection != null) {
-            if (localSession != null && localMediaStream != null) {
+            if (localMediaStream != null) {
                 peerConnection.addStream(localMediaStream);
             }